itzmelanie1
21.03.2020 •
Mathematics
If f(x) = 2x +4, which of the following is the inverse of f(x)?
O A. F-1(x) = 2x=47
O B. $1(x) = 7x* a
O c. f-'(x) = 2(x+4)
OD. F-1(x) = 7(x= 4)
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Ответ:
The inverse of f(x) is (x-4)/2
Step-by-step explanation:
f(x) =2x+4
To find the inverse let f(x) =y
y =2x+4
Exchange x and y
x = 2y+4
Solve for y
Subtract 4 from each side
x-4 = 2y+4-4
x-4 = 2y
Divide each side by 2
(x-4)/2= 2y/2
(x-4)/2=y
The inverse of f(x) is (x-4)/2
Ответ:
8*(2+5)=56
Step-by-step explanation:
that would be the answer because
2+5=7
then
8*7=56